The median/average age of the population of Mount Stuart is 40 years of age.

80.2% of people living in the suburb of Mount Stuart were born in Australia. The other top responses for country of birth were 5.1% England, 1.2% New Zealand, 0.7% South Africa, 0.6% Scotland, 0.5% China , 0.5% Italy, 0.5% Germany, 0.5% United States of America, 0.4% Poland, 0.4% Cyprus, 0.4% India, 0.4% Congo, Democratic Republic of, 0.4% Iraq, 0.3% Burundi.

89.0% of people living in Mount Stuart speak English only. The other top languages spoken are 2.9% Language spoken at home not stated, 1.6% Other, 1.2% Greek, 0.7% Polish, 0.7% Turkish, 0.6% German, 0.6% Italian, 0.3% French, 0.3% Arabic.

45.1% of people are married, 37.3% have never married and 10.1% are divorced and 2.5% are separated. There are 90 widowed people living in Mount Stuart.

55.6% of the people living in Mount Stuart over the age of 15 and who identify as being in the labour force are employed full time, 34.6% are working on a part time basis. Mount Stuart has an unemployment rate of 3.6%.

The main industries people from Mount Stuart work in are 16.6% Public administration and safety, 13.9% Education and training, 13.2% Health care and social assistance, 9.9% Professional, scientific and technical services, 7.9% Retail trade, 7.0% Accommodation and food services, 4.5% Construction, 4.1% Manufacturing, 3.4% Electricity, gas, water and waste services.

39.5% of homes are fully owned, and 35.1% are in the process of being purchased by home loan mortgage. 23.1% of homes are rented.

The median individual income is $728 per week and the median household income is $1418 per week.

The median rent in Mount Stuart is $250 per week and the median mortgage repayment is $1625 per month.